Twin City Amateur Astronomers

Calendar of Events

The Calendar of all scheduled club events is shown here. For additional detail about the event, follow the link in the Event column.
You can also download our Public Observing Session brochure.
Mars & the Events of 2020 Saturday, April 25, 2020 7:00 PM Mars makes its closest approach to Earth every 780 days (1.9 years). The next closest approach will occur on October 13th, 2020 when it appears opposite the sun in the sky. Prepare now to observe Mars as it moves rapidly eastward among the stars of the zodiac, brightening all the while, and then suddenly executing an impressive 13-degree-long retrograde zigzag!
Sugar Grove Nature Center Scheduled
Galaxies of the Spring Saturday, May 23, 2020 8:45 PM In the spring, our line of sight on the sky looks straight out of our galaxy into the vast space beyond, showcasing thousands of bright galaxies and millions of dim ones. We will tour this neighborhood of the universe, highlighting some of the most beautiful galaxies in the heavens. Sugar Grove Nature Center Scheduled
Navigating with Stars Saturday, June 20, 2020 9:00 PM For centuries, navigators have relied on stars to identify directions, compute latitude, and even read local time. We will explore these ideas and also examine the problem of measuring one’s longitude at sea – a fascinating problem that defeated some of the best minds in the world for many years. Sugar Grove Nature Center Scheduled
Jupiter and Saturn Saturday, July 18, 2020 9:00 PM Jupiter and Saturn offer stark contrasts when compared to the inner planets. We will review how and why they formed in their current locations and their impact on the formation of the rest of the solar system. We will learn how the two greatest planets are similar yet different. Sugar Grove Nature Center Scheduled
Touring the Milky Way Saturday, August 22, 2020 8:15 PM The Milky Way is one of countless stellar islands floating in a cosmic foam of dark matter, dark energy, and matter. Humanity is trying to find out what our galaxy looks like inside and out using ingenious observing methods and increasingly more sensitive equipment. Take a tour of our “cosmic home” to see what we know so far. Sugar Grove Nature Center Scheduled
The ISS: Past, Present and Future Saturday, September 19, 2020 7:30 PM The International Space Station (ISS) is humankind’s largest artificial satellite. Given the right time and conditions, it can be easily seen orbiting overhead. We will look at how it was constructed, how it is used, what it is like living in space, and where it is headed in the future. Sugar Grove Nature Center Scheduled
Missions to Mars Saturday, October 17, 2020 7:00 PM As we reach our closest approach to Mars for the year, the Red Planet shines brightly throughout the evening. Let’s review the many spacecraft missions we’ve sent there, what they are revealing, and how they are paving the way for a future manned mission to Mars.
In addition, we will have a laser-guided sky tour and telescope observing.
Sugar Grove Nature Center Scheduled